{"id":"CVE-2025-65942","revision":null,"records":[{"revision":"ed82a92f9dd847babc5146132e437227","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-65942","aliases":[],"title":"VictoriaMetrics Snappy Decoder DoS Vulnerability is Causing OOM","description":"VictoriaMetrics is a scalable solution for monitoring and managing time series data. In versions from 1.0.0 to before 1.110.23, from 1.111.0 to before 1.122.8, and from 1.123.0 to before 1.129.1, affected versions are vulnerable to DoS attacks because the snappy decoder ignored VictoriaMetrics request size limits allowing malformed blocks to trigger excessive memory use. This could lead to OOM errors and service instability. The fix enforces block-size checks based on MaxRequest limits. 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This issue has been patched in versions 1.110.23, 1.122.8, and 1.129.1.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L","score":2.7,"severity":null}],"references":["https://github.com/VictoriaMetrics/VictoriaMetrics/security/advisories/GHSA-66jq-2c23-2xh5","https://github.com/VictoriaMetrics/VictoriaMetrics/commit/51b44afd34d2c9a392d4ebedeeb5b4a7f5beca24","https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.110.23","https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.122.8","https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.129.1"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-199645","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Nov 25, 2025, 10:25:46 PM","dateUpdated":"Nov 26, 2025, 2:53:28 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. 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In versions from 1.0.0 to before 1.110.23, from 1.111.0 to before 1.122.8, and from 1.123.0 to before 1.129.1, affected versions are vulnerable to DoS attacks because the snappy decoder ignored VictoriaMetrics request size limits allowing malformed blocks to trigger excessive memory use. This could lead to OOM errors and service instability. The fix enforces block-size checks based on MaxRequest limits. This issue has been patched in versions 1.110.23, 1.122.8, and 1.129.1.","state":0,"publishedAt":"2025-11-25T23:15:47.923+00:00","modifiedAt":"2026-10-19T13:10:00.11+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L","score":2.7,"severity":"LOW"}],"references":["https://github.com/VictoriaMetrics/VictoriaMetrics/commit/51b44afd34d2c9a392d4ebedeeb5b4a7f5beca24","https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.110.23","https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.122.8","https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.129.1","https://github.com/VictoriaMetrics/VictoriaMetrics/security/advisories/GHSA-66jq-2c23-2xh5"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-65942","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Deferred","weaknesses":["CWE-770"],"productCriteria":[],"sourceDates":{"published":"2025-11-25T23:15:47.923","lastModified":"2026-10-19T13:10:00.110"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2025-65942","identifiers":["CVE-2025-65942"]},"retained":false,"historicalAffected":[]},{"revision":"e61d2ea93fdf4b63ba92dcee7697ebb7","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GHSA-66jq-2c23-2xh5","aliases":["CVE-2025-65942","GO-2025-4161"],"title":"VictoriaMetrics' Snappy Decoder DoS Vulnerability is Causing OOM","description":"### Impact\nAffected versions are vulnerable to DoS attacks because the snappy decoder ignored VictoriaMetrics request size limits allowing malformed blocks to trigger excessive memory use. This could lead to OOM errors and service instability. The fix enforces block-size checks based on MaxRequest limits.\n\n### Patches\nVersions 1.129.1, 1.122.8, 1.110.23\n\n### Resources\n - https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.129.1\n - https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.122.8\n - https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.110.23\n \n### Note \nVictoriaMetrics' security model assumes its APIs are properly secured (e.g. via access control flags or a firewall); this advisory addresses malicious input that should not be possible under a [correctly secured](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#security) deployment.","state":0,"publishedAt":"2025-11-25T20:40:13+00:00","modifiedAt":"2026-09-10T03:50:30.4733922+00:00","affected":[{"ecosystem":"Go","name":"github.com/VictoriaMetrics/VictoriaMetrics","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"1.123.0"},{"kind":"fixed","version":"1.129.1"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"Go","name":"github.com/VictoriaMetrics/VictoriaMetrics","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"1.111.0"},{"kind":"fixed","version":"1.122.8"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"Go","name":"github.com/VictoriaMetrics/VictoriaMetrics","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"1.0.0"},{"kind":"fixed","version":"1.110.23"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"LOW"}],"references":["https://github.com/VictoriaMetrics/VictoriaMetrics/security/advisories/GHSA-66jq-2c23-2xh5","https://nvd.nist.gov/vuln/detail/CVE-2025-65942","https://github.com/VictoriaMetrics/VictoriaMetrics/commit/51b44afd34d2c9a392d4ebedeeb5b4a7f5beca24","https://github.com/VictoriaMetrics/VictoriaMetrics","https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.110.23","https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.122.8","https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.129.1"],"sourceUrl":"https://github.com/advisories/GHSA-66jq-2c23-2xh5","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-66jq-2c23-2xh5","identifiers":["GHSA-66jq-2c23-2xh5","CVE-2025-65942","GO-2025-4161"]},"retained":false,"historicalAffected":[]},{"revision":"d063309baabc443cbe5be62deccee719","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GO-2025-4161","aliases":["CVE-2025-65942","GHSA-66jq-2c23-2xh5"],"title":"VictoriaMetrics' Snappy Decoder DoS Vulnerability is Causing OOM in github.com/VictoriaMetrics/VictoriaMetrics","description":"VictoriaMetrics' Snappy Decoder DoS Vulnerability is Causing OOM in github.com/VictoriaMetrics/VictoriaMetrics","state":0,"publishedAt":"2025-12-15T20:37:41+00:00","modifiedAt":"2026-02-04T03:01:32.282457+00:00","affected":[{"ecosystem":"Go","name":"github.com/VictoriaMetrics/VictoriaMetrics","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"1.110.23"},{"kind":"introduced","version":"1.111.0"},{"kind":"fixed","version":"1.122.8"},{"kind":"introduced","version":"1.123.0"},{"kind":"fixed","version":"1.129.1"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[],"references":["https://github.com/VictoriaMetrics/VictoriaMetrics/security/advisories/GHSA-66jq-2c23-2xh5","https://github.com/VictoriaMetrics/VictoriaMetrics/commit/51b44afd34d2c9a392d4ebedeeb5b4a7f5beca24","https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.110.23","https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.122.8","https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.129.1"],"sourceUrl":"https://osv.dev/vulnerability/GO-2025-4161","license":"OSV · upstream source license applies","key":"osv:GO-2025-4161","identifiers":["GO-2025-4161","CVE-2025-65942","GHSA-66jq-2c23-2xh5"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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